/*
 * Copyright (c) 2020 - present, Inspur Genersoft Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.inspur.edp.cef.generator.entityGenerator.base.dataTypeData.dataTypePropGen.assoUdt;

import com.inspur.edp.caf.generator.baseInfo.ParameterInfo;
import com.inspur.edp.caf.generator.baseInfo.TypeInfo;
import com.inspur.edp.caf.generator.method.ClassMethodGenerator;
import com.inspur.edp.caf.generator.property.ClassPropertyGenerator;
import com.inspur.edp.cef.designtime.api.IGspCommonField;
import com.inspur.edp.cef.designtime.api.collection.GspFieldCollection;
import com.inspur.edp.cef.generator.common.MediatePropertyInfo;
import com.inspur.edp.cef.generator.coreGenerator.base.entitygen.EntityGeneratorContext;
import com.inspur.edp.cef.generator.coreGenerator.base.entitygen.method.DataStaticGetValueGenerator;
import com.inspur.edp.cef.generator.overall.Utils;
import java.util.ArrayList;
import org.eclipse.jdt.core.dom.Block;
import org.eclipse.jdt.core.dom.ClassInstanceCreation;
import org.eclipse.jdt.core.dom.InfixExpression;
import org.eclipse.jdt.core.dom.MethodInvocation;
import org.eclipse.jdt.core.dom.Modifier;
import org.eclipse.jdt.core.dom.ReturnStatement;
import org.eclipse.jdt.core.dom.StringLiteral;
import org.eclipse.jdt.core.dom.SuperMethodInvocation;
import org.eclipse.jdt.core.dom.SwitchCase;
import org.eclipse.jdt.core.dom.SwitchStatement;
import org.eclipse.jdt.core.dom.ThrowStatement;

public class AssoUdtEnrichedInfoGetValueGenerator extends ClassMethodGenerator {

  private static final String MethodName = "innerGetValue";
  private static final String FormalParName = "propName";
  private IGspCommonField field;

  public AssoUdtEnrichedInfoGetValueGenerator(IGspCommonField field) {
    this.field = field;
  }

  @Override
  protected String getMethodName() {
    return MethodName;
  }

  @Override
  protected boolean getIsOverride() {
    return true;
  }

  @Override
  protected TypeInfo getReturnType() {
    return new TypeInfo(Object.class.getTypeName());
  }


  @Override
  protected ArrayList<Modifier.ModifierKeyword> getAccessModifiers() {
    ArrayList<Modifier.ModifierKeyword> list = new ArrayList<>();
    list.add(Modifier.ModifierKeyword.PROTECTED_KEYWORD);
    return list;
  }

  @Override
  protected ArrayList<ParameterInfo> getParameterCollection() {
    ArrayList<ParameterInfo> list = new ArrayList<>();
    ParameterInfo parameterInfo = new ParameterInfo();
    parameterInfo.setParamType(new TypeInfo(String.class.getTypeName()));
    parameterInfo.setParamName(FormalParName);
    list.add(parameterInfo);
    return list;
  }

  @Override
  protected Block buildMethodBody() {
    Block block = ast.newBlock();
    SwitchStatement switchStatement = ast.newSwitchStatement();
    setSwitchExpresssion(switchStatement);
    setSwitchCases(switchStatement);
    setSwitchDefaultCase(switchStatement);
    block.statements().add(switchStatement);
    return block;
  }

  private void setSwitchExpresssion(SwitchStatement switchStatement) {
    switchStatement.setExpression(ast.newSimpleName(FormalParName));
  }

  private void setSwitchCases(SwitchStatement switchStatement) {
    GspFieldCollection refEles = field.getChildAssociations().get(0).getRefElementCollection();
    for (IGspCommonField refEle : refEles) {
      if (refEle.getIsFromAssoUdt()) {
        continue;
      }
      buildPropertyCaseStatement(refEle, switchStatement);
    }
  }

  private void buildPropertyCaseStatement(IGspCommonField propertyInfo,
      SwitchStatement switchStatement) {
    SwitchCase switchCase1 = ast.newSwitchCase();

    StringLiteral stringLiteral = ast.newStringLiteral();
    stringLiteral.setLiteralValue(propertyInfo.getLabelID());
    switchCase1.setExpression(stringLiteral);
    switchStatement.statements().add(switchCase1);

    ReturnStatement returnStatement = ast.newReturnStatement();
    MethodInvocation methodInvocation = ast.newMethodInvocation();

    methodInvocation.setName(ast.newSimpleName(Utils.getGetterMethodName(propertyInfo.getLabelID())));
    returnStatement.setExpression(methodInvocation);
    switchStatement.statements().add(returnStatement);
  }

  private void setSwitchDefaultCase(SwitchStatement switchStatement) {
    SwitchCase defaultCase = ast.newSwitchCase();
    defaultCase.setExpression(null);
    switchStatement.statements().add(defaultCase);

    ReturnStatement returnStatement = ast.newReturnStatement();
    SuperMethodInvocation methodInvocation = ast.newSuperMethodInvocation();
    methodInvocation.setName(ast.newSimpleName(MethodName));
    methodInvocation.arguments().add(ast.newSimpleName(FormalParName));
    returnStatement.setExpression(methodInvocation);
    switchStatement.statements().add(returnStatement);
  }
}
